The IP unicast or multicast destination address of the
session. This field must be non-zero.

Protocol Id

The IP Protocol Identifier for the data flow. This field
must be non-zero.

Flags

0x01 = E_Police flag

The E_Police flag is used in Path messages to determine
the effective "edge" of the network, to control traffic
policing. If the sender host is not itself capable of
traffic policing, it will set this bit on in Path
messages it sends. The first node whose RSVP is capable
of traffic policing will do so (if appropriate to the
service) and turn the flag off.

DstPort

The UDP/TCP destination port for the session. Zero may be
used to indicate `none'.

Other SESSION C-Types could be defined in the future to
support other demultiplexing conventions in the transport-
layer or application layer.